Your SlideShare is downloading. ×
0
Hala Mohtasseb - impact of environmental conditions on the design of metro and light rail systems
Hala Mohtasseb - impact of environmental conditions on the design of metro and light rail systems
Hala Mohtasseb - impact of environmental conditions on the design of metro and light rail systems
Hala Mohtasseb - impact of environmental conditions on the design of metro and light rail systems
Hala Mohtasseb - impact of environmental conditions on the design of metro and light rail systems
Hala Mohtasseb - impact of environmental conditions on the design of metro and light rail systems
Hala Mohtasseb - impact of environmental conditions on the design of metro and light rail systems
Hala Mohtasseb - impact of environmental conditions on the design of metro and light rail systems
Hala Mohtasseb - impact of environmental conditions on the design of metro and light rail systems
Hala Mohtasseb - impact of environmental conditions on the design of metro and light rail systems
Hala Mohtasseb - impact of environmental conditions on the design of metro and light rail systems
Hala Mohtasseb - impact of environmental conditions on the design of metro and light rail systems
Hala Mohtasseb - impact of environmental conditions on the design of metro and light rail systems
Hala Mohtasseb - impact of environmental conditions on the design of metro and light rail systems
Hala Mohtasseb - impact of environmental conditions on the design of metro and light rail systems
Hala Mohtasseb - impact of environmental conditions on the design of metro and light rail systems
Hala Mohtasseb - impact of environmental conditions on the design of metro and light rail systems
Hala Mohtasseb - impact of environmental conditions on the design of metro and light rail systems
Hala Mohtasseb - impact of environmental conditions on the design of metro and light rail systems
Hala Mohtasseb - impact of environmental conditions on the design of metro and light rail systems
Hala Mohtasseb - impact of environmental conditions on the design of metro and light rail systems
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Hala Mohtasseb - impact of environmental conditions on the design of metro and light rail systems

505

Published on

0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
505
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
21
Comments
0
Likes
1
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. IMPACT OF ENVIRONMENTAL CONDITIONS ON THE DESIGN OF METRO AND LIGHT RAIL SYSTEMS FOCUS ON GULF COUNTRIESHala Mohtasseb 1
  • 2. SUMMARY METRO AND LIGHT RAIL PROJECTS / GULF AREA ROLLING STOCK MANUFACTURERS GULF COUNTRIES WEATHER CHARACTERITICS IMPACT OF ENVIRONMENTAL CONDITIONS ON SYSTEMS BEHAVIOR1- HIGH TEMPERATURES2- DUST ISSUE3- HUMIDITY SOLUTIONS RECOMMENDED 2
  • 3. METRO & LIGHT RAIL PROJECTS GULF AREARapidly-growing population & severe traffic congestion in GULF countries Need to build an urban rail system to provide additional public transportation capacity, relieve motor traffic, and provide infrastructure for additional development. 3
  • 4. METRO & LIGHT RAIL PROJECTS GULF AREAALREADY UNDER OPERATION UNITED ARAB EMIRATES : DUBAI Metro Operated since 9th of Spetember 2009 5 car-trainset / fully automatic driverless trains . 4
  • 5. METRO & LIGHT RAIL PROJECTS GULF AREAALREADY UNDER OPERATIONSAUDI ARABIA : MECCA Metro• Operated since 15th of November 2010• 12 car-trainset• manual driving with ATP system onboard .• Will be operated as a driverless mid 2011 . 5
  • 6. METRO & LIGHT RAIL PROJECTS GULF AREAUNDER TENDERING / DESIGN PHASE PROCESS KUWAIT : 4 Metro projects DUBAIEl Safouh tramway project ABU DHABIMetro and LRT projects QATARMetro and LRT projects 6
  • 7. ROLLING STOCK MANUFACTURERSCOMPETITION IS TOUGH BETWEEN ROLLING STOCK MANUFACTURERS !To win the tender, the BEST PRODUCT WITH LOWER PRICE is proposed offer their standard products / trains / systems . Minimize modifications by limiting Customization only to interior and exterior design .Metro and LRT projects FOR GULF COUNTRIES : All standard products suggested MUST be Reviewed and modified eventually to fit severe environmental conditions ( heat , sand and humidity ) , 7
  • 8. GULF COUNTRIES WEATHER CHARACTERISTICS High temperaturesCould reach 50°C in certain countries Dusty / Unexpected Sand stormsKuwait latest sand storm ( 25th of March 2011) High level of humidityEspecially in United Arab emirates 8
  • 9. GULF COUNTRIES WEATHER CHARACTERISTICSKUWAIT Highest monthly averagehigh temperature 45 °C in July. Maxi. relative humidity : 43% Dust and unexpected sand storms Latest 25th March 2011 9
  • 10. GULF COUNTRIES WEATHER CHARACTERISTICSUNITED ARAB EMIRATES Average maximum temperature : 39°C Months Average Average Average Maximum Minimum Maximum Temperature Temperature Humidity (Celsius) (Celsius) (Avg %) Maximum relative humidity : 90%! January 23 12 90 February 24 14 89• Sand storms in UAE : March 27 16 85 April 30 18 83 27TH of March 2011 May 34 22 80 June 36 25 85 July 38 28 80 August 39 28 82 September 37 25 85 October 33 22 87 November 31 18 86 December 26 14 88 10
  • 11. GULF COUNTRIES WEATHER CHARACTERISTICSSAOUDI ARABIA Highest monthly average high temperature 45 °C. Maximum relative humidity : 40% sand storms : Latest 25th of october 2010 11
  • 12. IMPACT OF ENVIRONMENTAL CONDITIONS ON SYSTEMS BEHAVIORSTANDARD DISTRIBUTION OF MAIN EQUIPMENTS / METRO SYSTEM Air conditioning system Radio antennae etc .. Bogie Traction system, braking system , auxiliary inverter brake pads , motors Brake resistor ATC antennas 12
  • 13. IMPACT OF ENVIRONMENTAL CONDITIONS ON SYSTEMS BEHAVIORSTANDARD DISTRIBUTION OF MAIN EQUIPMENTS / LRT SYSTEM Air conditioning system Radio antennae etc .. Traction system, braking system auxiliary inverter Brake resistor Bogie ,brake pads , motors Other antennas 13
  • 14. IMPACT OF ENVIRONMENTAL CONDITIONS ON SYSTEMS BEHAVIORHIGH TEMPERATURES ( over 50°C )IMPACT ON OPERATION OF SYSTEMS INCLUDINGELECTRONIC COMPONENTS LEADING TO FAILURE /CUT-OFF OF THE SYSTEM INCREASE OF CURATIVE MAINTENANCE OPERATIONSMain systems concerned :- Air conditioning system- Traction system- Braking system- Auxiliary inverter 14
  • 15. IMPACT OF ENVIRONMENTAL CONDITIONS ON SYSTEMS BEHAVIORDUST ISSUEIMPACT ON OPERATION OF SYSTEMS INCLUDING SAND FILTERS LEADING TO FAILURE /CUT-OFF OF THE SYSTEM INCREASE OF CURATIVE AND PREVENTIVE MAINTENANCE OPERATIONSCLEANING OF FILTERS MORE OFTENMain systems concerned :- Air conditioning system ( fresh air and mixed air filters )- Traction system- Braking system- Auxiliary inverter 15
  • 16. IMPACT OF ENVIRONMENTAL CONDITIONS ON SYSTEMS BEHAVIORHUMIDITY MIXED WITH POLLUTION, IMPACT ON ADHESION VALUE AVAILABLE ON THE TRACK LEADING TO LOWER DYNAMIC PERFORMANCE OF THE TRAIN CORROSION OF CARBODY STRUCTURE AND EQUIPMENTS LOCATED UNDEFRAME AND ON THE ROOF OF THE TRAIN 16
  • 17. SOLUTIONS RECOMMENDEDHIGH TEMPERATURES ( over 50°C )1-THERMODYNAMIC STUDY OF EQUIPMENTS DISTRIBUTION OPTIMIZATION OF HEAT DISTRIBUTION ON THE ROOF AND UNDERFRAME OF THE TRAIN ADDITIONAL SOLUTIONS EXIST FOR SOME SYSTEMS : Air Conditioning System : in order to decrease the temperature at the air inlet Braking resistor : Replace braking resistor by ‘super capacitors ‘ => decrease temperatures locally 17
  • 18. SOLUTIONS RECOMMENDEDHIGH TEMPERATURES ( over 50°C )2- REDUNDANCY OF SYSTEMS ESPECIALLY IN CASE OF DRIVERLESS SYSTEMS ( FIRST FAILURE MUST BE TRANSPARENT FOR OPERATION OF THE TRAIN ) HIGHER AVAILIBILITY THINK OPERATION FROM THE START OF DESIGN PHASECHALLENGE : TO FIND A BALANCE BETWEEN AVAILIBILTY & RELIABILITY:The Higher is the AVAILIBILTY the lower would be RELIABILITY of the train .3- RETURN OF EXPERIENCE ON SIMILAR PROJECTS WITH SIMILAR ENVIRONMENTAL CONDITIONS DUBAI Metro MECCA Metro 18
  • 19. SOLUTIONS RECOMMENDEDDUST ISSUE1-CHOOSE ADEQUATE SAND FILTERS FOR SYSTEMS STUDY OF GRANULOMETRY OF LOCAL SAND SEARCH FOR FILTERS WITH MINIMUM MAINTENANCE REQUIRED OR MAINTENANCE FREE 19
  • 20. SOLUTIONS RECOMMENDEDHUMIDITY1-CHOOSE ADEQUATE WHEEL SLIDE/WHEEL SLIP PROTECTION DYNAMIC TEST OF THE TRAIN ON TRACK (TYPE TEST)2-CHOOSE ADEQUATE MATERIAL TO MINIMIZE CORROSION STAINLESS STEEL ALUMINIUM 20
  • 21. THANK YOU !Hala Mohtasseb 21

×